The Development of Laboratory Equipment for Testing The Characteristics of Unsaturated Soils

Abstract

The laboratory assessment of the hydraulic characteristics of unsaturated soils usually requires expensive equipment and an extended time period. With lack of financial support, yet taking advantage of local knowledge and resources, the development of cheaper alternative equipment is presented in the present paper. The automated setup allows the assessment of the saturation degree of soil samples subjected to different suctions.

If the inline PDF is not rendering correctly, you can download the PDF file here.

  • [1] Klute A.: Laboratory measurement of hydraulic conductivity of unsaturated soil. Methods of Soil Analysis, Mono. 9, Part 1. American Society of Agronomy, Madison, WI, USA, 1965, 253–261.

  • [2] Hamilton J. M., Daniel D. E., Olson R. E.: Measurement of hydraulic conductivity of partially saturated soils. Permeability and Groundwater Contaminant Transport. ASTM Special Technical Publication 746, 1981, 182–196.

  • [3] Watson K. K.: An instantaneous profile method for determining hydraulic conductivity of unsaturated porous materials. Water Resources Research 2/4. (1966), 709–715. https://doi.org/10.1029/WR002i004p00709

  • [4] Gardner W. R.: Calculation of capillary conductivity from pressure plate out flow data. Soil Science Society of America 20/3. (1956) 317–320. https://doi.org/10.2136/sssaj1956.03615995002000030006x

  • [5] Benson C. H., Gribb M. M.: Measuring unsaturated hydraulic conductivity in the laboratory and field. In: Unsaturated Soil Engineering Practice (eds: Houston, S. L., Fredlund, D. G.) American Society of Civil Engineers GSP 68, New York, NY, 1997, 113–168.

  • [6] Leij F. J., van Genuchten M. Th.: Characterization and measurement of the hydraulic properties of unsaturated porous media. (eds.: van Genuchten M. Th., Leij F. J., Wu L.), Proceedings of International Workshop on Characterization and Measurements of the Hydraulic Properties of Unsaturated Porous Media. U.S. Salinity Laboratory and Univer sity of California, Riverside, CA, October 22-24, 1997, 31–42.

  • [7] Brooks R. H., Corey A. T.: Hydraulic properties of porous medium. Hydrology Paper 3. Colorado State University, Fort Collins, Colorado, USA, 1964. https://mountainscholar.org/bitstream/handle/10217/61288/HydrologyPapers_n3.pdf?sequence

  • [8] Fredlund D. G., Xing A., Huang, S.: Predicting the permeability function for unsaturated soil using the soil-water characteristic curve. Canadian Geotechnical Journal 31/4. (1994), 533–546. https://doi.org/10.1139/t94-062

  • [9] Mualem Y.: A new model for predicting the hydraulic conductivity of unsaturated porous media. Water Resources Research 12/3. (1976) 513–522. https://doi.org/10.1029/WR012i003p00513

  • [10] Van Genuchten M. T.: A closed-form equation for predicting the hydraulic conductivity of unsaturated soils. Soil Science Society of America Journal 44/5. (1980) 892–898. http://doi.org/10.2136/sssaj1980.03615995004400050002x

  • [11] Vanapalli S. K., Nicotera M. V., Sharma R.S.: Axis translation and negative water column techniques for suction control. In: Laboratory and Field Testing of Unsaturated Soils (eds.: Tarantino A., Romero E., Cui Y. J.) Springer, Dordrecht, 2009, 33-48. https://doi.org/10.1007/978-1-4020-8819-3_4

  • [12] Burdine N. T.: Relative Permeability Calculations From Pore Size Distribution Data, Transactions of the American Institute of Mining & Metallurgical Engineers, 198, (1953) 71 – 78. https://doi.org/10.2118/225-G

  • [13] Coley G.: element14 BeagleBone Black System Reference Manual, Premier Farnell, 2014, https://cdn.sparkfun.com/datasheets/Dev/Beagle/e14BBB_SRM_rev 0.9.pdf (accessed: October 2017).

  • [14] BeagleBoard.org, BeagleBone. https://beagleboard.org/bone (accessed: October 2017).

OPEN ACCESS

Journal + Issues

Search